<template>
  <div class="article-container">
    <el-card class="filter-card">
      <div slot="header" class="clearfix">


        <el-breadcrumb separator-class="el-icon-arrow-right">
          <el-breadcrumb-item to="/">首页</el-breadcrumb-item>
          <el-breadcrumb-item>内容管理</el-breadcrumb-item>
        </el-breadcrumb>

      </div>
      <!-- 数据筛选表单 -->
      <el-form ref="form" :inline="true"  class="demo-form-inline" :model="form" label-width="100px" size="mini">
        <el-form-item label="文章状态">
          <el-select v-model="status" placeholder="请选择">
            <el-option label="全部" :value="null"></el-option>
            <el-option :label="item.name" :value="item.id" v-for="(item, index) in statuslist" :key="index">
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="文章类型">
          <el-select v-model="channelId" placeholder="请选择">
            <el-option label="全部" :value="null"></el-option>
            <el-option :label="channel.name" :value="channel.id" v-for="(channel, index) in channels" :key="index">
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="创建日期">
          <el-date-picker v-model="rangeDate" type="daterange" start-placeholder="开始日期" end-placeholder="结束日期"
            format="yyyy-MM-dd" value-format="yyyy-MM-dd" />
        </el-form-item>
        <el-form-item>
          <!--
            button 按钮的 click 事件有个默认参数
            当你没有指定参数的时候，它会默认传递一个没用的数据
           -->
          <el-button type="primary" :disabled="loading" @click="loadArticles(1)">查询</el-button>
        </el-form-item>
      </el-form>
      <!-- /数据筛选表单 -->
    </el-card>

    <el-card class="box-card">
      <div slot="header" class="clearfix">
        根据筛选条件共查询到 {{ totalCount }} 条结果：
      </div>
      <!-- 数据列表 -->

      <el-table :data="articles" stripe style="width: 100%" class="list-table" size="mini" v-loading="loading">
        <el-table-column prop="date" label="封面">
          <template slot-scope="scope">
            <el-image style="width: 50px; height: 50px" :src="scope.row.coverimg||''" fit="cover" lazy>
              <div slot="placeholder" class="image-slot">
                加载中<span class="dot">...</span>
              </div>
            </el-image>

          </template>
        </el-table-column>
        <el-table-column prop="title" label="标题">
        </el-table-column>
        <el-table-column label="状态">
          <!-- 如果需要在自定义列模板中获取当前遍历项数据，那么就在 template 上声明 slot-scope="scope" -->
          <template slot-scope="scope">
            <el-tag :type="articleStatus[scope.row.status-1].type">{{ statuslist[scope.row.status-1].name }}</el-tag>
          </template>
        </el-table-column>
        <el-table-column prop="createdate" label="发布时间">
        </el-table-column>
        <el-table-column prop="updatadate" label="更新时间"></el-table-column>
        <el-table-column label="操作">
          <!-- 如果需要自定义表格列模板，则把需要自定义的内容放到 template 里面 -->
          <template slot-scope="{row,$index}">
            <el-button size="mini" circle icon="el-icon-edit" type="primary"
              @click="$router.push('/publish?id=' + row.id.toString())"></el-button>
            <el-button size="mini" type="danger" icon="el-icon-delete" circle @click="onDeleteArticle(row.id,$index)">
            </el-button>
            <el-button size="mini" round @click="onDeleteArticle(row.id,$index)">文章详情
            </el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- /数据列表 -->

      <!-- 列表分页 -->
      <!--
        total 用来设定总数据的条数
        它默认按照 10 条每页计算总页码
        page-size 每页显示条目个数，支持 .sync 修饰符，默认每页 10 条

        90 3 90 / 3 = 30
       -->
      <el-pagination layout="prev, pager, next" background :total="totalCount" :page-size="pageSize" :disabled="loading"
        :current-page.sync="page" @current-change="onCurrentChange" />
      <!-- /列表分页 -->
    </el-card>
  </div>
</template>

<script>
import {
  getArticles,
  getArticleChannels,
  getstatuslist,
  deleteArticle
} from '@/api/article'

export default {
  name: 'ArticleIndex',
  components: {},
  props: {},
  data() {
    return {
      form: {
        name: '',
        region: '',
        date1: '',
        date2: '',
        delivery: false,
        type: [],
        resource: '',
        desc: ''
      },
      articles: [], // 文章数据列表
      articleStatus: [
        { status: 0, text: '草稿', type: 'info' }, // 0
        { status: 1, text: '待审核', type: '' }, // 1
        { status: 2, text: '审核通过', type: 'success' }, // 2
        { status: 3, text: '审核失败', type: 'warning' }
      ],
      totalCount: 0, // 总数据条数
      pageSize: 10, // 每页大小
      status: null, // 查询文章的状态，不传就是全部
      statuslist: [],//状态list
      channels: [], // 文章类型列表
      channelId: null, // 查询文章的频道
      rangeDate: null, // 筛选的范围日期
      loading: true, // 表单数据加载中 loading
      page: 1 // 当前页码
    }
  },
  computed: {},
  watch: {},
  async created() {
    await this.loadstatuslist()
    this.loadChannels()
    this.loadArticles(1)
  },
  mounted() { },
  methods: {
    async loadstatuslist() {
      // 状态list

      const list = await getstatuslist()
      this.statuslist = list
    },
    async loadArticles(page = 1) {
      // 展示加载中 loading
      this.loading = true
      const { total_count, list } = await getArticles({
        page,
        per_page: this.pageSize,
        status: this.status,
        channel_id: this.channelId,
        begin_pubdate: this.rangeDate ? this.rangeDate[0] : null, // 开始日期
        end_pubdate: this.rangeDate ? this.rangeDate[1] : null // 截止日期
      })
      this.articles = list || []
      this.totalCount = total_count

      // 关闭加载中 loading
      this.loading = false
    },

    onSubmit() {
      console.log('submit!')
    },

    onCurrentChange(page) {
      this.loadArticles(page)
    },

   async loadChannels() {
      //获取文章类型

   const datas =await   getArticleChannels()
      this.channels= datas||[]
    },

    onDeleteArticle(articleId,index) {
      console.log(articleId)
      console.log(articleId.toString())
      this.$confirm('确认删除吗？', '删除提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        this.articles.splice(index,1)
        // 确认执行这里
        // deleteArticle(articleId.toString()).then(res => {
        //   // 删除成功，更新当前页的文章数据列表
        //   this.loadArticles(this.page)
        // })
      }).catch(() => {
        this.$message({
          type: 'info',
          message: '已取消删除'
        })
      })
      // 找到数据接口
      // 封装请求方法
      // 删除请求调用
      // 处理响应结果
      // console.log('onDeleteArticle')
    }
  }
}
</script>

<style scoped lang="less">
.filter-card {
  margin-bottom: 30px;
}

.list-table {
  margin-bottom: 20px;
}

.article-cover {
  width: 60px;
  background-size: cover;
}
</style>
